Sub and superharmonics of the lunar nodal tides and the solar radiative forcing in global sea level changes
The working hypothesis of this study is that periodic lunar nodal tides and almost periodic solar radiation variations influence sea level changes through their harmonic beating of nearby natural and/or forced broadband oscillations of the sea level at multi-decadal frequencies. The presence of the...
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doaj-40b7a114e3bc4ca2982fac63fb8e08d62020-11-24T23:42:44ZengSciendoJournal of Geodetic Science2081-99432014-12-014110.2478/jogs-2014-0016jogs-2014-0016Sub and superharmonics of the lunar nodal tides and the solar radiative forcing in global sea level changesBâki Iz H.0Dept. of Land Surveying and Geo-Informatics The Hong Kong Polytechnic University, Hong Kong, ChinaThe working hypothesis of this study is that periodic lunar nodal tides and almost periodic solar radiation variations influence sea level changes through their harmonic beating of nearby natural and/or forced broadband oscillations of the sea level at multi-decadal frequencies. The presence of the harmonics of the lunar nodal tides and the solar radiation variations, including the pole tides, is investigated by modeling and estimating the amplitudes of the corresponding periodicities in 27 globally distributed long tide gauge records. Statistically significant signatures of sub and superharmonics of lunar nodal tides and forced sea level variations due to solar radiation are detected in all station records.Meta-analysis of the harmonic amplitudes from all stations reveals that the effect sizes are statistically significant and provide evidence for the harmonic beating of sea level changes as a global phenomenon. Consequently, the compounding of the lunar nodal tides and forced sea level changes due to solar radiation with other broadband natural and forced sea level oscillations is a plausible explanation for the recent sea level accelerations and decelerations detected by satellite altimetry measurements and long tidal records.http://www.degruyter.com/view/j/jogs.2014.4.issue-1/jogs-2014-0016/jogs-2014-0016.xml?format=INTClimate change Lunar nodal subharmonics and superharmonicsSea level rise Satellite altimetry Solar radiation Tide gauge Variable acceleration |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Bâki Iz H. |
spellingShingle |
Bâki Iz H. Sub and superharmonics of the lunar nodal tides and the solar radiative forcing in global sea level changes Journal of Geodetic Science Climate change Lunar nodal subharmonics and superharmonics Sea level rise Satellite altimetry Solar radiation Tide gauge Variable acceleration |
author_facet |
Bâki Iz H. |
author_sort |
Bâki Iz H. |
title |
Sub and superharmonics of the lunar nodal tides
and the solar radiative forcing in global sea level
changes |
title_short |
Sub and superharmonics of the lunar nodal tides
and the solar radiative forcing in global sea level
changes |
title_full |
Sub and superharmonics of the lunar nodal tides
and the solar radiative forcing in global sea level
changes |
title_fullStr |
Sub and superharmonics of the lunar nodal tides
and the solar radiative forcing in global sea level
changes |
title_full_unstemmed |
Sub and superharmonics of the lunar nodal tides
and the solar radiative forcing in global sea level
changes |
title_sort |
sub and superharmonics of the lunar nodal tides
and the solar radiative forcing in global sea level
changes |
publisher |
Sciendo |
series |
Journal of Geodetic Science |
issn |
2081-9943 |
publishDate |
2014-12-01 |
description |
The working hypothesis of this study is that periodic
lunar nodal tides and almost periodic solar radiation
variations influence sea level changes through their
harmonic beating of nearby natural and/or forced broadband
oscillations of the sea level at multi-decadal frequencies.
The presence of the harmonics of the lunar nodal
tides and the solar radiation variations, including the pole
tides, is investigated by modeling and estimating the amplitudes
of the corresponding periodicities in 27 globally
distributed long tide gauge records. Statistically significant
signatures of sub and superharmonics of lunar nodal
tides and forced sea level variations due to solar radiation
are detected in all station records.Meta-analysis of the harmonic
amplitudes from all stations reveals that the effect
sizes are statistically significant and provide evidence for
the harmonic beating of sea level changes as a global phenomenon.
Consequently, the compounding of the lunar
nodal tides and forced sea level changes due to solar radiation
with other broadband natural and forced sea level
oscillations is a plausible explanation for the recent sea
level accelerations and decelerations detected by satellite
altimetry measurements and long tidal records. |
topic |
Climate change Lunar nodal subharmonics and superharmonics Sea level rise Satellite altimetry Solar radiation Tide gauge Variable acceleration |
url |
http://www.degruyter.com/view/j/jogs.2014.4.issue-1/jogs-2014-0016/jogs-2014-0016.xml?format=INT |
work_keys_str_mv |
AT bakiizh subandsuperharmonicsofthelunarnodaltidesandthesolarradiativeforcinginglobalsealevelchanges |
_version_ |
1725503262469128192 |